The performance type is a mediator that connects a film to an actor who starred in the film. Normally this would be a direct relationship, but a mediator was needed to hold the character name.
Some performances, particularly famous ones (eg. Laurence Olivier in Hamlet) can be turned into full-fledged Topics and given titles, images, articles, etc.
Additionally there is the Special Performance type for performances that are non-standard (notable examples would be Motion Capture for the role of Gollum in the Lord of the Rings trilogy or Voice or Seiyu for animated/foriegn films )
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The performance type is a mediator that connects a film to an actor who starred in the film...
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